Renewable plow edge



April 28, 1959 L.. A. osTERHAUs 2,884,082

' RENEWABLE PLow EDGE' Filed April 2, 195e INVENTOR v 0 A. gsi/@Ma BY f!ATTORNEY 5 States RENEWABLE PLOW EDGE Application April 2, 1956, SerialNo. 575,389

1 Claim. (Cl. 172-719) The present invention relates to an attachableplow blade cutting edge.

The primary object of the invention is to provide an attachable edgeblade construction for a plow that can be easily renewed throughreplacement when worn so as to renew the plow blade.

Another object of the invention is to provide a plow blade cutting edgeattachment of the class described above which is constructed so as to beattachable with ordinary tools generally available on a farm.

A further object of the invention is to provide a plow blade edgerenewing attachment which will be inexpensive to manufacture, simple touse and attach, and highly durable in normal service.

Other objects and advantages will become apparent in the followingspecification when considered in the light of the attached drawings, inwhich:

Figure 1 is a side elevation of the invention shown attached to a plowblade, partially broken away for clarity.

Figure 2 is an enlarged fragmentary horizontal crosssection taken alongthe line 2 2 of Figure l, looking in the direction indicated.

Figure 3 is an enlarged generally vertical cross section taken along theline 3--3 of Figure 1, looking in the direction indicated.

Figure 4 is an enlarged fragmentary vertical cross section taken alongthe line 4 4 of Figure l, looking in the direction indicated.

Figure 5 is a front elevation of the invention.

Figure 6 is a fragmentary rear elevation of the invention showing theside thereof opposite the side illustrated in Figure 1.

Referring now to the drawings in detail wherein like reference numeralsindicate like parts throughout the several gures, the reference numeral10 indicates generally a plow blade of the type normally formed with arelatively straight lower edge portion 11 terminating in a bottom edge12.

A renewable blade, generally indicated at 13, is adapted to be engagedover the lower edge portion 11 of the plow blade 10, as illustrated inFigures 1 and 4. The renewable blade 13 consists of an elongatedgenerally flat blade member 14 which has the major portion of its loweredge sharpened as at 15 to form a cutting edge. A pocket forming plate16 is welded at 17 along its lower edge to the elongated blade 14 invertically spaced relation to the sharpened edge 1S thereof. A pointforming plate 18 having a thickness substantially greater than the blademember 14 is secured to the forward edge of the blade 14 by welding 19,or the like. The point forming plate 18 is joined to the blade member 14along a downwardly and forwardly sloping line. The forward edge of.liatented Apr. 28, 1959 the point forming plate 18 is laterally offsetas at 20 and joined to the forward end edge of the pocket forming plate16 by welding as at 21. The lower forward edge of the point formingplate 18 terminates in a plow point 22 in line with the sharpened edge15 of the elongated blade member 14. The point 22 along with thesurfaces of the point forming plate 18, extending upwardly andrearwardly therefrom, have an extremely hard oiled material coating Z3and 2.4 formed on opposite sides thereof by normal welding processes.

The offset portion Ztl of the point forming plate 18 is provided with apair of weld beads 25 and 26 extending upwardly in a divergent V-formalong opposite side edges thereof. The lower edge of the point formingplate 18 is sharpened as at 27.

All of the weld material used herein to form the welds 17, 19, 21, 23,24, 25 and 26 consists of the same identical extremely hard materialwhich materially reduces the dulling effects of the use of the edge 13in the ground.

The blade 14 and the pocket forming plate 16 are spaced apart inparallel relation a distance slightly less than the thickness of theplow blade 1li under normal conditions so that the attachable edge 13will tightly grip the plow blade 1t) when it is driven thereon by meansof an impact tool.

Obviously, as the attachment 13 becomes worn it can be replaced by usinga similar device attached in the same manner as described above.

Having thus described the preferred embodiment of the invention, itshould be understood that numerous structural modifications andadaptations may be resorted to without departing from the scope of theappended claim.

What is claimed is:

A renewable edge and point attachment for plow blades comprising anelongated at relatively narrow edge forming blade member, said blademember having the lower edge thereof sharpened throughout its length,said blade member terminating in a downwardly and forwardly slopingforward edge, a point forming plate having a thickness greater than thethickness of said blade member secured to the forward edge of said blademember with said point forming plate extending above said blade member,a transversely offset forward edge portion integrally formed on saidpoint forming plate, a pocket forming plate extending in spaced parallelrelation to said blade member with its lower edge offset toward andsecured to said blade member in spaced parallel relation to saidsharpened edge, said pocket forming plate having its forward edgesecured to the offset edge portion of said point forming plate, asharpened edge formed on the lower edge of said point forming plate insubstantially aligned relation to the sharpened edge of said blademember, and a hardened metallic coating secured to the lower forward endportion of said point forming plate to provide a wear surface, saidblade member and said pocket forming plate forming therebetween a pocketto receive the lower edge portion of said plow blade therebetween withthe opposite side faces thereof frictionally gripped between said blademember and said pocket forming plate.

References Cited in the le of this patent UNITED STATES PATENTS1,972,192 Jones Sept. 4, 1934 2,073,801 Linden Mar. 16, 1937 2,431,639Goedken Nov. 2S, 1947

